86 Suburban daily driver

[BlueJeep]

Originally Posted by SCOTI

Here's an image of a shop built notch. Not much clearance gained for the work but it is what it is. I bet if you extended the plating on both sides of the frame to where it's just below the floor (box the inside of the rail & plate the outside portion), you gain strength & could go ~3" into the rail. wouldn't have to cap the top off making it an easier install (as long as it doesn't trap moisture).

Thanks for the picture! Is that a blazer by chance? Mine doesn't have the crossmember right above he notch like that one. I will box the inside for sure, and I was also thinking of running it higher and filling in some of the gap between the frame and the floor.

[SCOTI]

Originally Posted by BlueJeep

Thanks for the picture! Is that a blazer by chance? Mine doesn't have the crossmember right above he notch like that one. I will box the inside for sure, and I was also thinking of running it higher and filling in some of the gap between the frame and the floor.

Yes. It's a Blazer.

I would make the plates as tall as will fit. The strength is in their height. Capping them will add some rigidity but the main thing would be the height & doing it to both sides (like an I-beam).